3 years ago

2: Estimate the mean number of games the girls attended ?

Mathematics

1 answer:

Monica [59]3 years ago

4 0

Answer:

around 9

Step-by-step explanation:

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a wire of length 200 cm is cut into two parts and each part is bent to form a square.If the area of the larger square is 9 times

diamong [38]

Answer:

The perimeter of the larger square is $150cm.$

Step-by-step explanation:

First of all, let one part of it be " $x$ "

and the other part of it " $200-x$ "

Now to solve this :

The area of the square = $L^2$

The area of one part of the square = $x^2$

The area of the other part of the square = $(200-x)^2$

$9x^2= (200-x)^2\\9x^2=40000-400x+x^2$

Now, add, $-4x^2$ to both the sides :

$9x^2-9x^2=40000-400x+x^2-9x^2\\-1(8x^2+400x-40000)=0$

Now, take out the "8" which is common :

$-8(x^2+50x-5000)=0$

Now, divide it by $-8$ :

$x^2+100x-50x-5000=0\\x(x+100)-50(x+100)=0\\(x+100)(x-50)=0\\$

$x=-100$ or $50$

So, now we know that :

One of the part is = $50cm$

And the other part is = $150cm$

Thus the perimeter of the larger square is = $150cm$

3 0

3 years ago

Help asap 7(8+4k)+12

GuDViN [60]

<h3>Answer: 28k+68</h3>

=============================================

Work Shown:

7(8+4k)+12

7*8+7*4k+12 ..... distributive property

56+28k+12

28k+56+12

28k+68

8 0

3 years ago

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Ok, sorry, I'm back hehe >:3 (Find the volume of a right cone that has the radius of 4 inches and the height of 12 inches) (A

miskamm [114]

Your answer should of been B

3 0

3 years ago

What is the area of this parallelogram? h = 2 in. b = 10 in

xxTIMURxx [149]

Answer:assuming it’s not a 3D object then, 2x10=20

If it is, then do the base 2x10 then times the height

Step-by-step explanation:

6 0

3 years ago

A card is drawn from a standard 52-card deck. What is the probability that the card is a red 8, given that the card is an 8?

crimeas [40]

probability that the card is a red 8
=
2 out of 52 or 1 out of 26

hope it helps

8 0

3 years ago

Read 2 more answers